I have an under active thyroid taking 150mg of levothyroxine (for years) and last week was diagnosed with osteoporosis 3.9 in spine & 3.7 in hip, prescribed alendronic acid ...but a friend has advised research that states that bio phosphates are not good long term & she has stopped taking them....feeling confused & would be grateful for any research documents that I can be pointed towards.

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Hi just read your message I'm the same as you got under active thyroid and been taking AA since Jan got osteoporosis in hip. I haven't had any side affects as yet so try them also take calcium and bought vit D and K2 from health food shop was advised on this site by a member don't know if they will work for you. Gill